Gree GMV5 Series - Page 354

GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
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Refer to section ―Hardware Debug‖ to set Modbus gateway address. Make sure the address DIP
switch on the same Modbus bus is unique and ranges from 1 to 255.
Step 2: Set the number of first IDU.
According to the number range of IDUs to be processed by Modbus gateways, the first IDU should
be numbered 1 or 129. For details, refer to section 1.4.2.4 ―Hardware Debug‖.
2.1.7.4 Communication Debug Between Modbus Gateways and Gree Remote Monitoring System
After Gree Remote Monitoring system is installed, perform the following steps:
Step 1: Configure Modbus serial port.
Choose ―Start‖ -> ―Gree CAC Remote Monitoring System‖ -> ―Com Configuration‖.
The following window is displayed. Select a serial port number and click ―OK‖.
The following window is shown. Click ―OK‖ to restart the PC.